Soft laser self-adhesive label film and preparation method thereof

A soft, laser technology, applied in the direction of chemical instruments and methods, lamination, instruments, etc., can solve the problems of extreme softness, high followability, inability to meet the use characteristics of hoses, insufficient softness and followability, etc. Achieving the effect of good decorative effect, avoiding deformation and high transparency

Active Publication Date: 2013-02-27
GUANGZHOU JINWANZHENG PRINTING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these biaxially stretched rigid substrates have poor softness and do not have a high degree of followability. As decorative materials, laser label films are used in hoses for cosmetics, personal care and cleaning products (such as facial cleanser packaging hoses) , Toothpaste packaging hose) surface decoration material, because the hose is squeezed when it is in use, so the decoration material attached to the surface of the hose must be able to withstand the whole body extrusion, so this label must be extremely soft, Only with a high degree of followability can it be guaranteed that the hose or bottle will not be warped or disengaged due to being squeezed
The above-mentioned biaxially stretched hard materials cannot meet the label requirements of extreme softness and high followability, and are not suitable for labels that can be squeezed and deformed.
[0006] The existing domestic and international laser self-adhesive labels also use unstretched PE (polyethylene), CPP (unstretched polypropylene film), and rigid PVC film substrates with medium flexibility and followability. However, there are two major defects: 1. The transparency of the base material is poor: PE haze is 8% to 12%, CPP haze is 2%, and rigid PVC haze is 2% to 3%; 2. Softness and followability Insufficient flexibility to meet the use characteristics of hoses or squeezeable deformable bottles that are not warped and wrinkled when squeezed

Method used

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  • Soft laser self-adhesive label film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Please refer to figure 1 , The flexible laser self-adhesive label film of the present invention comprises a polyolefin film layer 7, a polyurethane glue layer 6, an aluminized layer 5, an imaging layer 4, a peeling layer 3, a pressure-sensitive adhesive layer 2, and PET silicone oil from top to bottom. For the paper layer 1, the polyolefin film layer 7 has a longitudinal softness of 80-110mN and a transverse softness of 60-90mN. The polyolefin film layer 7 is preferably a soft PVC film layer. The softness of the polyolefin film layer 7 is measured according to the national standard GB / T 8942-2002. The test instrument is a hand-feel softness tester. The temperature of the test environment is 23°C and the relative humidity is 60%. The seam width is 20.0mm.

[0034] The preparation method of above-mentioned soft laser self-adhesive label film is:

[0035] 1) Using transparent PET film as the molded base material, coating the peeling layer 3, imaging layer 4, and alumini...

Embodiment 2

[0041] The difference between this example and Example 1 is that in order to avoid the deformation of the surface material of the soft laser label, the removal of the transparent PET film and the coating of the composite pressure-sensitive adhesive are carried out at the same time in step 5). The specific operation method is: Install the recovery guide roller at a distance of 20cm from the composite station of the cloth machine, and then install the active tension recovery roller 1m above the recovery guide roller, and place the composite pressure-sensitive adhesive layer on the composite station of the scraper coater First, put the soft laser label surface material on the unwinding station of the scraper coater, pull the soft laser label surface material to the compound station through the traction guide roller, and automatically The tension recovery roller begins to peel off the transparent PET film of the soft laser label surface material, and the soft laser label surface ma...

Embodiment 3

[0043]The difference between this embodiment and Embodiment 1 is that the thickness of the soft PVC film layer is 50-120 μm, and when the soft PVC film layer is too thick, the softness is poor, and the followability of the product is also poor, so it cannot be compared with the soft PVC film layer. tubes or squeezable bottles for a perfect fit, polyolefin film layers that are too thin have too little stiffness for automatic labeling on the production line with a labeling machine.

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Abstract

The invention discloses a soft laser self-adhesive label film and a preparation method thereof, successively comprising a polyolefin film layer, a polyurethane glue layer, an aluminium coated layer, an imaging layer, a peeling layer, a pressure-sensitive adhesive layer, and a PET silicone paper layer from top to bottom, wherein the longitudinal softness of the polyolefin film layer is 80-110mN, and the horizontal softness of the polyolefin film layer is 60-90 mN. The invention further provides a preparation method of the soft laser self-adhesive label film. Compared with the prior art, the soft laser self-adhesive label film disclosed herein has good softness and high following performance, and is suitable for flexible tubes or bottle bodies that can be extruded to deform.

Description

[0001] technical field [0002] The invention relates to the technical field of laser self-adhesive labels, in particular to a soft laser self-adhesive label film and a preparation method thereof. [0003] Background technique [0004] Self-adhesive labels are also called self-adhesive labels, instant stickers, instant stickers, pressure-sensitive labels, etc., which are made of paper, film or special materials, with adhesive on the back, and silicon-coated backing paper as a protective paper. Composite materials, and processed into finished labels by printing, die-cutting, etc. When applying, you only need to peel off the backing paper, and it can be pasted on the surface of various objects with a light touch, or you can use a labeling machine to automatically label on the production line. Self-adhesive is widely used in various commodities, such as drug labels, food labels, wine labels, battery labels, outer box labels, daily chemical product labels and so on. [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/085B32B27/06B32B7/12G09F3/02B32B37/12B32B38/16
Inventor 李书锋
Owner GUANGZHOU JINWANZHENG PRINTING MATERIAL CO LTD
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